.aliyun-chatbot-container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    display: flex;
    flex-direction: column;
    height: 500px;
}

.aliyun-chatbot-header {
    background-color: #0066cc;
    color: white;
    padding: 15px;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
}

.aliyun-chatbot-header h3 {
    margin: 0;
    font-size: 18px;
    flex-grow: 1;
}

.aliyun-chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 15px;
    background-color: #f9f9f9;
    display: flex;
    flex-direction: column;
}

.aliyun-chatbot-message {
    margin-bottom: 15px;
    max-width: 80%;
    clear: both;
    animation: fadeIn 0.3s ease-in-out;
}

.aliyun-chatbot-message.user {
    align-self: flex-end;
}

.aliyun-chatbot-message.bot {
    align-self: flex-start;
}

.aliyun-chatbot-message-content {
    padding: 10px 15px;
    border-radius: 18px;
    display: inline-block;
    word-break: break-word;
}

.aliyun-chatbot-message.user .aliyun-chatbot-message-content {
    background-color: #0066cc;
    color: white;
    border-top-right-radius: 4px;
}

.aliyun-chatbot-message.bot .aliyun-chatbot-message-content {
    background-color: #e9e9eb;
    color: #333;
    border-top-left-radius: 4px;
}

.aliyun-chatbot-thoughts {
    font-size: 0.9em;
    color: #666;
    padding: 10px;
    margin-bottom: 10px;
    background-color: #f2f2f2;
    border-left: 3px solid #ccc;
    border-radius: 4px;
    white-space: pre-wrap;
    max-height: 200px;
    overflow-y: auto;
}

.aliyun-chatbot-input-container {
    display: flex;
    border-top: 1px solid #ddd;
    padding: 10px;
    background-color: white;
}

.aliyun-chatbot-input {
    flex: 1;
    border: none;
    outline: none;
    padding: 10px;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.aliyun-chatbot-input:disabled {
    background-color: #f5f5f5;
    color: #999;
}

.aliyun-chatbot-send {
    background-color: #0066cc;
    color: white;
    border: none;
    border-radius: 5px;
    padding: 10px 15px;
    margin-left: 10px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s;
}

.aliyun-chatbot-send:hover {
    background-color: #0055b3;
}

.aliyun-chatbot-send:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

.aliyun-chatbot-send:focus {
    outline: 2px solid #0088ff;
    outline-offset: 2px;
}

.aliyun-chatbot-error {
    color: #721c24;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    padding: 10px 15px;
    border-radius: 5px;
    margin-bottom: 15px;
}

.aliyun-chatbot-clear-btn {
    background-color: transparent;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 5px;
    padding: 3px 8px;
    margin-left: 10px;
    cursor: pointer;
    font-size: 12px;
    transition: background-color 0.2s;
}

.aliyun-chatbot-clear-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Accessibility helper */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}

/* Animation for loading */
.aliyun-chatbot-thinking {
    display: flex;
    align-items: center;
    justify-content: center;
}

.aliyun-chatbot-thinking .dot {
    background-color: #999;
    border-radius: 50%;
    width: 8px;
    height: 8px;
    margin: 0 2px;
    animation: pulse 1.4s infinite ease-in-out;
}

.aliyun-chatbot-thinking .dot:nth-child(1) {
    animation-delay: -0.32s;
}

.aliyun-chatbot-thinking .dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes pulse {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1.0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}